<template>
  <view>
    <view class="search-box">

      <uni-search-bar placeholder="请输入搜索内容" bgColor="#EEEEEE" @input="input" :radius="100" cancelButton="none"/>

    </view>
    <!-- 搜索列表 -->
    <view class="sugg-list" v-if="searchResults.length !== 0">
      <view class="sugg-item" v-for="(item, i) in searchResults" :key="i" @click="gotoDetail(item)">
        <view class="goods-name">{{item.goods_name}}</view>
        <uni-icons type="right" size="16"></uni-icons>
      </view>
      
    </view>
    <!-- 搜索历史 -->
    <view class="history-box" v-else>
      <!-- 标题区 -->
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash" size="17" @click="clean"></uni-icons>
      </view>
      <!-- 列表区 -->
      <view class="history-list">
        <uni-tag :text="item1" v-for="(item1, i1) in historys" :key="i1"  @click="gotoGoodsList(item1)"></uni-tag>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        timer: null,
        kw: '',
        searchResults: [],
        historyList: ['a', 'app', 'apple']
      };
    },
    onLoad() {
      this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
    },
    computed: {
      historys() {
        return [...this.historyList].reverse()
      }
    },
    methods: {
      input(e) {
        clearTimeout(this.timer)
        this.timer = setTimeout(() => {
          this.kw = e
          this.getSearchList()
        },500)
        
      },
      async getSearchList() {
        if (this.kw.length === 0) {
          this.searchResults = []
          return
        } 
        const { data: res } = await uni.$http.get('/api/public/v1/goods/qsearch', {query: this.kw})
        if (res.meta.status !== 200) return uni.$showMsg()
        this.searchResults = res.message
        
        this.saveSearchHistory()
      },
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      },
      saveSearchHistory() {
        // this.historyList.push(this.kw)
        const set = new Set(this.historyList)
        set.delete(this.kw)
        set.add(this.kw)
        this.historyList = Array.from(set)
        uni.setStorageSync('kw', JSON.stringify(this.historyList))
      },
      clean() {
        this.historyList = []
        uni.setStorageSync('kw','[]')
      },
      gotoGoodsList(kw) {
        uni.navigateTo({
          url: '/subpkg/goods_list/goods_list?query=' + kw
        })
      },
    },
  }
</script>

<style lang="scss">
.search-box {
  position: sticky;
  top: 0;
  z-index: 99999999;
}
.sugg-list {
  padding: 0 5px;
  .sugg-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    .goods-name{
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      
    }
  }
}
.history-box {
	  padding: 0 5px;

	  .history-title {
	    display: flex;
	    justify-content: space-between;
	    align-items: center;
	    height: 40px;
	    font-size: 13px;
	    border-bottom: 1px solid #000000  ;
      margin-bottom: 5px;
	  }
	
	  .history-list {
	    display: flex;
	    flex-wrap: wrap;

	    .uni-tag {
        // margin-top: 5px;
	      margin-right: 5px;
	    }
	  }
  }  
</style>
